Generation of electric power and air conditioning by cogeneration: a proposal for energy saving

Main Article Content


Iván Vera-Romero, M.Sc.


This paper presents the results of a case study carried out in a warehouse, and, in particular, the technical data obtained from field visits and a proposal for energy saving. The proposal entails incorporating a cogeneration system based on a motor generator (400 kWe ISO) to produce electrical energy, and an absorption cooling system (75 TR) that uses residual heat to generate air-conditioning. The absorption chiller consumed 54% less energy than the conventional air-conditioning system. Moreover, the produced energy can supply the plant’s total consumption, in addition to offering an excess of 57,312 kWh per month, which was reflected in the analysis of energy for sale to users with a high domestic consumption rate (DAC, for its Spanish acronym). The proposal’s total investment is USD 1,091,258, with a net monthly savings of USD 30,901, and an investment payback period of 2.9 years, which indicates the viability of this project according to its energy characteristics, notwithstanding that it is for a service provider company.


Article Details


Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

All articles included in the Revista Facultad de Ingeniería are published under the Creative Commons (BY) license.

Authors must complete, sign, and submit the Review and Publication Authorization Form of the manuscript provided by the Journal; this form should contain all the originality and copyright information of the manuscript.

The authors who publish in this Journal accept the following conditions:

a. The authors retain the copyright and transfer the right of the first publication to the journal, with the work registered under the Creative Commons attribution license, which allows third parties to use what is published as long as they mention the authorship of the work and the first publication in this Journal.

b. Authors can make other independent and additional contractual agreements for the non-exclusive distribution of the version of the article published in this journal (eg, include it in an institutional repository or publish it in a book) provided they clearly indicate that the work It was first published in this Journal.

c. Authors are allowed and recommended to publish their work on the Internet (for example on institutional or personal pages) before and during the process.
review and publication, as it can lead to productive exchanges and a greater and faster dissemination of published work.

d. The Journal authorizes the total or partial reproduction of the content of the publication, as long as the source is cited, that is, the name of the Journal, name of the author (s), year, volume, publication number and pages of the article.

e. The ideas and statements issued by the authors are their responsibility and in no case bind the Journal.


[1] S. M. Soler-Pérez, “Metodología general para la evaluación integral de la eficiencia energética en los centrales azucareros,” Tecnología Química, vol. 31 (1), pp. 40-46, 2011.

[2] Conuee and Giz, “Manual para la Implementación de un Sistema de Gestión de la Energía,” 2nd. Ed., Conuee/Giz, México, 2016. Available in:

[3] H. T. Ramírez, and G. A. Monforte, “Eficiencia de las estrategias de uso eficiente de energía eléctrica en hoteles de cinco estrellas en la ciudad de Mérida, Yucatán,” in XI Congreso internacional de investigación en ciencias administrativas, 2007.

[4] Calidad y Sustentabilidad en la Edificación A.C., “Código de la conservación de la energía para las Edificaciones en México,” CASESI, México, 2016. Available in:

[5] D. Staniaszek, and E. Lees, “Determining Energy Savings for Energy Efficiency Obligation Schemes,” RAP, 2012.

[6] M. A. Lozano, and J. Ramos, “Análisis energético y económico de sistemas simples de cogeneración,” Información Técnica, vol. 18(5), pp. 75-84, 2007.

[7] DOF, “Resolución por la que la comisión reguladora de energía expide la metodología para el cálculo de la eficiencia de los sistemas de cogeneración de energía eléctrica y los criterios para determinar la “Cogeneración Eficiente”,” México, 2011. Available in:

[8] M. F. Fernández, P. L. Huante, and C. A. Romo, “Sistemas de cogeneración,” Boletín IIE, vol. 30 (2), pp. 67-72, 2006.

[9] E. V. Torres, P. M. Salazar, L. R. Lugo, and A. Torres, “Análisis exergoeconómico de una planta de cogeneración con turbina de gas considerando el proceso de formación del residuo”, in CIBIM 10, Oporto, Portugal, 1387-1392, 2011.

[10] H. C. A. Orozco, “Ahorro de energía y eficiencia energética en sistemas de aire acondicionado y refrigeración,” Scientia et Technica, vol. 10(24), pp. 127-132, 2004.

[11] F. Li, L. Duanmu, and X. L. Zhao, “Research and application of flue gas waste heat recovery in cogeneration based on absorption heat-exchange,” Procedia Engineering, vol. 146, pp. 595-603, 2016. DOI:


Download data is not yet available.